| 31. | They are grown outside year-round in subtropical and tropical areas.
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| 32. | In some tropical areas, they are a staple food crop.
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| 33. | The tropical areas of northern Australia have a wet summer because of the monsoon.
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| 34. | Most temperate zone agricultural techniques are inappropriate for tropical areas.
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| 35. | Global precipitation is expected to rise two-fold in tropical areas.
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| 36. | All were fatal, and all the victims had returned from travel to tropical areas.
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| 37. | They are gregarious and thrive in tropical areas near water.
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| 38. | Many tropical areas have a dry and wet season.
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| 39. | This species can be difficult to grow because it originated in warm humid tropical areas.
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| 40. | It is one of the few glaciers left in the tropical areas of South America.
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